/** @file
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IPMI Serial Over Lan Driver.
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Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/IpmiCommandLib.h>
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#include <IndustryStandard/Ipmi.h>
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#define SOL_CMD_RETRY_COUNT 10
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/*++
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Routine Description:
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This routine gets the SOL payload status or settings for a specific channel.
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Arguments:
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Channel - LAN channel naumber.
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ParamSel - Configuration parameter selection.
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Data - Information returned from BMC.
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Returns:
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EFI_SUCCESS - SOL configuration parameters are successfully read from BMC.
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Others - SOL configuration parameters could not be read from BMC.
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--*/
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EFI_STATUS
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GetSOLStatus (
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IN UINT8 Channel,
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IN UINT8 ParamSel,
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IN OUT UINT8 *Data
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)
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{
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EFI_STATUS Status = EFI_SUCCESS;
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IPMI_GET_SOL_CONFIGURATION_PARAMETERS_REQUEST GetConfigurationParametersRequest;
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IPMI_GET_SOL_CONFIGURATION_PARAMETERS_RESPONSE GetConfigurationParametersResponse;
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UINT32 DataSize;
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UINT8 RetryCount;
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for (RetryCount = 0; RetryCount < SOL_CMD_RETRY_COUNT; RetryCount++) {
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ZeroMem (&GetConfigurationParametersRequest, sizeof(GetConfigurationParametersRequest));
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GetConfigurationParametersRequest.ChannelNumber.Bits.ChannelNumber = Channel;
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GetConfigurationParametersRequest.ParameterSelector = ParamSel;
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ZeroMem (&GetConfigurationParametersResponse, sizeof(GetConfigurationParametersResponse));
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DataSize = sizeof(GetConfigurationParametersResponse);
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Status = IpmiGetSolConfigurationParameters (
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&GetConfigurationParametersRequest,
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&GetConfigurationParametersResponse,
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&DataSize
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);
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if (Status == EFI_SUCCESS){
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break;
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} else {
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gBS->Stall(100000);
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}
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}
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if (Status == EFI_SUCCESS) {
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*Data = GetConfigurationParametersResponse.ParameterData[0];
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}
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return Status;
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}
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/*++
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Routine Description:
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This routine sets the SOL payload configuration parameters for a specific channel.
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Arguments:
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Channel - LAN channel naumber.
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ParamSel - Configuration parameter selection.
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Data - Configuration parameter values.
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Returns:
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EFI_SUCCESS - SOL configuration parameters are sent to BMC.
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Others - SOL configuration parameters could not be sent to BMC.
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--*/
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EFI_STATUS
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SetSOLParams (
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IN UINT8 Channel,
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IN UINT8 ParamSel,
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IN UINT8 Data
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)
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{
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EFI_STATUS Status = EFI_SUCCESS;
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IPMI_SET_SOL_CONFIGURATION_PARAMETERS_REQUEST SetConfigurationParametersRequest;
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UINT8 CompletionCode;
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UINT8 RetryCount;
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for (RetryCount = 0; RetryCount < SOL_CMD_RETRY_COUNT; RetryCount++) {
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ZeroMem (&SetConfigurationParametersRequest, sizeof(SetConfigurationParametersRequest));
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SetConfigurationParametersRequest.ChannelNumber.Bits.ChannelNumber = Channel;
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SetConfigurationParametersRequest.ParameterSelector = ParamSel;
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SetConfigurationParametersRequest.ParameterData[0] = Data;
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CompletionCode = 0;
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Status = IpmiSetSolConfigurationParameters (
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&SetConfigurationParametersRequest,
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sizeof(SetConfigurationParametersRequest),
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&CompletionCode
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);
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if (Status == EFI_SUCCESS) {
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break;
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} else {
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gBS->Stall(100000);
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}
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}
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return Status;
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}
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EFI_STATUS
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EFIAPI
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SolStatusEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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/*++
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Routine Description:
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This is the standard EFI driver point. This function initializes
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the private data required for creating SOL Status Driver.
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Arguments:
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ImageHandle - Handle for the image of this driver
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SystemTable - Pointer to the EFI System Table
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Returns:
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EFI_SUCCESS - Protocol successfully installed
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EFI_UNSUPPORTED - Protocol can't be installed.
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--*/
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{
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EFI_STATUS Status = EFI_SUCCESS;
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UINT8 Channel;
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BOOLEAN SolEnabled = FALSE;
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for (Channel = 1; Channel <= PcdGet8 (PcdMaxSOLChannels); Channel++) {
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Status = GetSOLStatus (Channel, IPMI_SOL_CONFIGURATION_PARAMETER_SOL_ENABLE, &SolEnabled);
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if (Status == EFI_SUCCESS) {
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DEBUG ((DEBUG_ERROR, "SOL enabling status for channel %x is %x\n", Channel, SolEnabled));
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} else {
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DEBUG ((DEBUG_ERROR, "Failed to get channel %x SOL status from BMC!, status is %x\n", Channel, Status));
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}
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}
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return Status;
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}
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